EPE EPS-2000 Series User manual

EPS2000
Table of Contents
Section 1
10 to 40kVA Owner's Manual
Section 2
50 to 125kVA Owner's Manual
Section 3
11 kVA Owner's Manual
Section 4
System Schematics
Section 5
Field Advisories:
Part numbers and Schematics
Section 6
Trouble shooting Guides
Section 7
Distribution Printed Circuit Board Schematics
Notes:
The information contained in this booklet has
proven to be the most useful of what information is
available.
Additional information is available upon
specific requests..

EPS2000
Technical Manual

EPS-2000’” 10 to 40 kVA
Uninterruptible power system
Owner’s manual

IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS- This manual contains important insf~cfims for madeis
EPS-2010 (10 kVA), EPS-2015 (15 kVA). EPS-2020 (ZOkVA). EPSZO30 (3WVA)and EPS-204
(40 WA) mat must be followed during baallatbn, operation. and mabnenance of the UPS and a
baReties. sea page 4-7 for Battery safely !nstNcffons.
I
m
WARNING
OPENING ENCLOII_I!?ES EY?tXES
H.4raRL?o’uS
I
w VOLTAGES. ALWAYS REFER SERVlCE TO QUALIFIED
. PERSONNEL ONLY.
.
f
NOTE
As standards, speciticmlon6, and designs shangm horn time to time.
a
pkaseaskfor
conmmation of the bdormalii g’wen In thii puL4iiion.
I
NOTE

EPS-2000” 10 to 40 kVA
Uninterruptible power system
Owner’s manual
1660 Scenic Avenue
Costa Mesa. CA 62626
(714) 557- 1628

Owner’s Manual
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1.1 sy5bm~rlptlan
1.1.1 Mode4 NunWr Format
1.12 R~efmattmychalQef
,,I*3 tq** !!!&a!
1.1.4 .Sta!k Switch
1.15 Malntenanoe Bypass
11 mQranmmblecontmk.end-
12.1 system status and catml Pansi (SaCP)
1.3 SpecmtauDDa
1.3.1 AClnputRstn~s
1.32 Bypass AC Input Rating0
1a.3 IfNetter AC Cupan Ftattlgs
13.4 Eattely chafacterl3tlcs
1.35 Embnmatal
1.3.6other chaiaua~
1.4 opuom
1.4.1 SRe - center (sctc)
1.4.2 Adiary C&M Aasmb’y (ACM)
IA.3 BATTERY PAC Assembty @PA)
1.44 Reme Mdtar (RM)
1.46 Remote Akum Panel
1.4.8 Rmmte camnkalions Lhk
1.47 Modem
1.4.8 Ramate Ems+!Janey Poweron (REpo)
1.4.9 DC Gmlnd Fault Irodicti
X4.10 Sn-nkwt@hTsmpsmUm Warning (BAllERY PAC)

EPS-2000TY Uninterruptible Power System
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2-17
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2-19
2-19
2-21
Z-22
SecUon II - INSTALLATION
2.5.2 AC input Cemwdions
25.3 Bypass AC Input (MAlNS2) Conndon
2.5.4 UPS o.nwt Load CMnedmn

Owner’s Manual
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3.4
3.4
3-5
3-5
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3-8
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4.1
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4-2
4-2
4-3
4-4
4-r
3.0 scope
3.1
Sptem Status and Control panal (sS&CP)
32 c0twd9
32.2 P.rqambt3convors
w EP3tdcmitor
3.3.1 IMona
3.3.2 Menus
3a.21 s(anup
3x2.2 InvetteroI!mf
3323 L&play-
3a24 @atby Transfer Test
3a2.5 + PmceQre
33.26 kT”Tti&
3.3.27 DfagmasUcs
39.23 Person&&n
3829 Comicarion
3.4
Operstlw-
84.1 -op3falhg~~
3.4.1.1 Nomxdoparatbn
3.4.12 01, Batlety@Wtfm
341.3 lnpl Pave, f3cntw~5toy chmging
3.4.1.4 UPS lnwrter Shul-Dovm or MnJor Overbad
3.42 Mmusl operatins Sequ-
3.421 RgtaFefmattaly c!!aget 3t.m 0, stop
3.422 UPS I”“erWr Sfarl or stop
3.423 UPS fsdalion for MainfeMnce
3.424 Retumlq the UPS to Norrel Operakn
3.5
Alamlcondllfons
3.5.1 Minw Akini-6
3.52 Major Alarms
352.1 RectifrerlBatlary charger t&j07 Namm
3.5.2.2 UPS fnvaies Major bJarnE

EPS-2000” Uninterruptible Power System
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3-23 I3
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3-27 17
EPS-20Wm Pictorial
EP5-~UPsshlgkLi?aDiawam
El?%zooon UPS MaJot fntemal
~omponents-10,15,and2OkVAModek
EPS4OOO~ UPS t&jar lnlemal
Cornponents-3Oand40k’JAModek
$fmglatua and Canlml Pans1 (SSXP)
BdtomVew.lOio4OkVAM&ls
RigM Bide cable Access
wirim Area

Owner’s Manual
1.0 scope
This manual provides technical information re-
qulmd fortheinstallation,operation.and maim
tenam. of the EPS-2CQo’u Unintenuptfble Power
SUpply (UPS) System. Please read th’i manual
thxeugtdy before installing or operating the 6PS
2OOW equipment. The manual is divided into
four sections:
Sectfon f - Introduction
This section melves as an htmductfon to the
manual and the EPS-2000TY series of UPS
products rated 10 to 40 kVA. The UPS &stem
is described, followed by specifications for
standard models, an introduction to controls
and fndicators, and a description ot evaitable
optlors.
Section II - Installation
This sectionexpfaiisproceduresforreceiving.
fwndll, and staling the equlpnwnt.
pmmquisires to the installation procedure. in-
stallatiion, andeq*pmant start-upprocedures.
sactfonIII - 0peratton
This section descrfbes the EPS-2W System
Status and Control Panel (SS6CP). includhtg
programmablecontrolsand indlcators. eleztrc-
mechanical controts, UPSoperating modes. and
eystem slmn mndllna.
Sectfan IV - Mafntenatwa
This sectiondescribes preventffe maintenance
pmcedures. diagnostic capablltles of the UPS
system. and includes a listing of replacement
parls for the vattous UPS mod&.
In the rear of the manual is a glossary which
pmvkles definftiona for terms used within the
text. An Index makes it easy to fii topics
of interest
Beneath En&we)
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EPS-2000’” Uninterruptible Power System
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f
Figure 2: EPS-ZGOW” LIPS S&k Line LIiagmm
1.1 System Descrfplfon
The EPS-ZOOP is a” on-line static unintemrp
twe power supply (UPS) system. designed to
protect crttkzal loads from a-lii nomwdly
encountered on a building’s power disbibution
system. The EPSaK!w UPS and its auxilii
equipment ca” be installed in a computer room
or 8” Bquipmsnt mom. Figure 1 is a pictorial of
the EPS-2000”’ UPS System
Tha EPS-2OWN UPS and its auxiliary equip
merit are listed by Underwriter’s Laboratories,
Inc. (LJL).
Major components of the EPS-20001Y include a
Rectifier/BatteryCharger, a transistorized pulse
width modulated (PWM) Static Inverter. B co”-
ti”tmusduty rated Static Switch tich aulornat~
tally transfers the load to and from the bypass
AC input source and the UPS lnverter output,
an internal b4ainterence Bypass fundion which
is comprised of three separate switches that
atlows the critical bad to be operated fmm the
utility source while the UPS oulput ts Isolated
for service, and a battery system housed in 8”
exiemat matchingenclosure.
A System Status & Control Panel (SSXP) pro-
vides mntmls to sslecl system operation, and
indicators which allow system performance to
be monitored. A liquid crystal display (LCD) is
used to dispfay system operating parameters.
provide step-by-step operating instructiom to
the system operator, and provide a diagraostic
mpablfii to assist in tmubleshwting. The built-
in EPS Monitor software is programmed to dii
play messages in fwe languages - English.
French, German. Spanish, and Italian.
The EPS- uses micmpprcsessors to pre
cisely control operation of the Rectifier/Battery
Charger, transistorized pulse width modulated
(PWM) Static Inverter, and Statii Switch to iw
awecptimlsnperfonnwws
for all line. kad. and
operating conditwns. In addition. a micmpre
cessor-baseddiignosticsystemassistsintrouble
shooting faulty assemblies for replacement, to
minimize service tinw. Modular constmction
thrwghatttheEPS-2000n UPSfacilitatesmain-
tenance of the system.
A singleline diagram of the EPS-2000’” UPS
system is shown in Fgure 2. The location of the
EPS-2000’” UPS major internal elements is
shown in Figure 3A (10, 15, & 20 kVA Models).
Figure 38 (30 & 40 kVA Models).

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EPC2000rY Uninterruptible Power SyStSfII
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1.1.1 Model Number Fqrmat
The Model Number Fo used for the EPS-
Standard Models and dmmctwkttcs are fisted fn
2oooN series of UPS fol s:
Tabkl.
2=208
5=50
3=330
6r60
4=480
e =ecc*
ht=p.?c
D =aW
A=403
E =a6
1.1.2 Rectffk3rBattery charger
The Rect?Ldf3attety Charger mnskts of:
l AC input Circuit Breaker @I): The AC *
Input Cinuft Breaker provides mecfwkal
koktlln and electrical protection for the in-
put of the UPS.
l lnputAu!otnnsfomwr Theltyt-
former k used to match the external AC
input source to that intemaliy required for
the UPS.
.
Power Module: The Power Module is a
plq-tnti~co-ImgACpaww
to s regukted DC outpul voltage. The regu-
ktion k carried oul by controlling the SCR
conduction angles. allowfng the Rectffer/
Eattwy charger IO supply s stable DC vott-
age (zt 1%). The DC voltage k filtered by e
capacttor bank.
DC Shunt: The DC Shunt is used to mot+
tar the battery charge current and provide
data for regufating the DC voltage at the
desired level. Battaty current k normalfy
limited to 10% of lhe Ampere-Hour (Ah) tat-
ing of the battery sMg.

EPS-20001Y Uninterruptible Power System
1.1.3 static lnvertw
The Static lnverter consists of:
c,
Power Module: The Power Module is a
plug-in mil, tlsed to chop the DC vdtage to
obtain the PWM waveform at the primary of
the output trarwlomwr. A single power module
is used for UPS systems fwfng an outpul
rating of 20 kVA or lower. UPS systems
rated above 20 kVA use three power mod-
ules, one module per phase.
lnvetter Tnmsfortner. The b-water Trens-
former is a fuii isofeiiin transformer which
provides input/output &ctdcal isolation for
the UPS. provides the required output volt-
age. and provides the required inductance
for lhe AC output filter.
AC Output Filter: The output filter is used
to achieve a computer grade sine wave
output voltage waveform. with B Total
Harmonic Distortion (THD) of 4% maximum
(3% typical).
1.1.4 Statlc Switch
The Slalii Switch transfers the load fmm the
UPSlmrateroutputtofhetypassAC@utsource.
or from the bypass AC input source to the UPS
lnverler Output. without any interruption to the
load @rovided that the UPS Inverter output is
synchronized to tie Bypass AC Input source).
These transfers take place autornatfcaliy upon
lmerter start-up or shutdown. The Static Switch
is rated for continuous duty, and is of plupin
oonstructfon for ease of maintenance.
The~Rc circuit networkproteots the St& Switch
against high voltage spikes and surges by
absorbing the excess energy. The ARC circuft
network is protected byIuses.and any failure of
these f&s will be displayed- on the
SSBCP LCD.
1.1.5 Maintenance Bypass
The internal Maintenance Bypass funotfon con-
Plsts of three swftchee which. when
operated
as spedfied, provide a make-lxefcfe-break transfer
of the bad frun the UPS bwerter output to the
bypassACinputsource.orfromthebypassAC
input source to the UPS lmerter output. This
feature allows the crftical load to be operated
from the trtiMy power source while the UPS
lnverler output is Isolated for mefntenance.
The three internal Maintenance Bypass non-auto-
matic switches are designated as:
A. Bypass (MAINSZ) Input (04s)
B. UPS Output Isolation (Q5N)
c. Mabllenance Bypass (03SP)
Camct operatfon of the thres switches is shown
on the Liquid Crystal Diiay (LCD). located on
the System Status & Contrd Panel (SS&CP) as
part of the procedure for start-up or shutdown
of the equipment.

Ownar’s Manual
12 Programmable Controls and Indicators
All EPS-ZOO(PY Programmable Controls (exch&
lng chdt breakersand nonautomatic switches)
and Indicators we located on lhe Syst~ Siis
and Control Panel (S&Q&P).
12.1 System Status and
cmtml Pans1 (SSSCP)
The System Status (L Control Panel (SS&CP) is
l lnverter Status Indicator
l Load on Bypass lmlicator
..-...^..e L. . .
l Voltago kkaa,.,..,... .aj,ad
l Cume!!t kkasummnt kejpad
l Maln Menu Call keypad
l Entry Validation or Return To Menu
kevigd
l Emergency Power Off (WC) keypads
shown In Figure 4. The SS6CP contains the Detailed desniptiins of the SS&CP indiiors
element6 listed below
and the “se cd the SS6CP keypads are pro-
vided in Sect& Ill -OPERATION, II 3.1.
l Liquid Crystal Display (LCD)
l Audible Alarm Silence keypad
l Alarm lndlcation
l Scmll Up keypad
l Scroll Down keypad
l Ten Digit (0 to 9) keypads
l RectifierIBattery Charger Status Indicator

EPS-200w Unintenuptible Power System
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1.3 Specifications
1.3.1 AC Input Ratings
Refer to 1 1.1 .I for nominal V&age (VAC)
values available.
Voltage:
As specified, nominal
plus (+) lO%/minus (-) 15%
Frequency: Nominal. plus (+) or
minus (-) 5%
Phases:
wires:
current:
Three, phase rotation A. 6. C
Three plus equipment ground
See Table 2 (page 2 - 7).
Nominal AC Input Current
Power Factor: 0.82 lagging minimum al full
bad output, nominal input voltage. and nornal
float voltage an battery
1.32 Bypass AC Input Ratings
voltage:
Must match UPS nonkal
output voltage * 10%
Frequency Window Nominal plus (+) or
minus (-) 0.25, 0.5, 0.73, or 1.0 Hz. Standard
seihg for bypass input frequency wkbw is
* 0.5 Hz ullb?&% olhelwis9 qJacified when M-
dered. The Frequency Window can be changed
after the unii is installed, but requires a visit by
an EPE authorized Customer Support Services
(CSS) represe”taive to modii the equipment
Contact EPEs Customer Support Services or-
ganizationforfurtherinformation.
Phase: Three, phase rotation A, 6. C
wires: Four wire WYE
CUfP3llt
See Table 2 (page 2 - 7), UPS
output ad Bypass AC Input Current at speck
fied nomiMI output voltage.
Power Factor. bad dependent
1.3.3 lnverter AC Output Ratings
Refer to 1 1.1 .I
for nominal V&age (VAC)
valuesavailable.
voltage:
Nominal value * 1% for all
conditions of line. load, and temperature
Frequencyz Nwmally q’“chrunhed lo the by-
pass AC inplt source (when available): other-
wise the output frequency is the nominal value
+ 0.1%.
Phase: Three. phase rdatbn A, 8. C
Wires:
Three or four. The UPS hlverter
output is a WYE cor@uratbn with the neutral
grounded. A three wire DELTA load can be
o~nneckd to the UPS lnverter output, but the
phase ccmnecliorw cannot he grounded.
Curmnt See Table 2 @age 2 - 7), UPS
Output and Bypass AC Input Current at speck
fled nominal input voltage.
Power Factor: The UPS bwerteroutpul is rated
al full MIA. 0.8 power factor lagging bad.
Slew Rate:
The rate cd change of the UPS
1~~r(~~r~h~~.(~)tiam2.de~ dhin
the frequenay window (see Eiypass AC Input
Ratings - Frequency Window). @) when sy”-
chronhing lo the bypass AC inpul source. or (c)
when going to a free nm”ing oonditb” after
losing AC input power, is 1 Hz&c maximum.

Owner’s Manual
Overload Characterfstlcs: Appfles to the UPS
Output when operating from ekher the bypass
AC input sc”me or the UPS lmerter output:
125% for 10 minutes
150% for 1 minute
Overloads in excess of 150% or exceeding the
overload time periods previcnsly indicatedwill
cause the Iced to be tmnsfened from the UPS
lnverler output to the bypeec AC input scume.
prcvfded the sources are synchmnized. Once
the load is transferred to the bypass AC input
soiime ski cxaeediiing the time periods preti-
ously indiied. the timed periods will stall again
for cpemttcn cn the UPS Static Switch. If the
load does not return to less then the tmb’s full
Iced rating prior to ccmpleting the timedwer-
load park&. the ked wffl be disccnnected.
Dynamic Charactetfetics: Peek voltage devia-
ticn on the UPS lnverter output is listed belaw
for the mndiikms imliied:
50% step load change
+3%maximum
100% stepbad change
* 5% maximum
Bynamlc Response: The UPS lnvetter output
voltage retmns to f 1% of ncmhml wfthin one
cydeafterexpetiencfng a 108%steplced change
1.3.4 Battery Characterlstfcs
DC Voltage Range:
325 Vdc minimum
438 Vdc maximum
-
1.3.5 Envfronmental Character-ktics
Temperature:
oparatlng Range: w c. to +4(P c.
(Excluding battery)
Noa-Cperating and Storage:
-25’ c. to +7w c.
Rettotrtmettded Environment:Computer Room
or ether temperature mntrclled envimnmect
Recommended Temperature: 20 to 300 C.
(Battety prctecticn time is based on e 29C.
ambient temperetwe)
Rscommended Relative Humidity: 50%
1.3.6 Other Chamoterlstke
Audible Noise Level:
10 to 40 kVA ratings: 5 88 dBA
PhyekalDimensions:
Height
56.18’/1.462 mm
Depth:
32.16*/817 mm
Width: See Table 1
DC Currant Requlr&
Weighk
SeeTable
See Table 2 (page 2 - 7). Mmdmum
Battery Current.

EPS-200w Uninterruptible Power System
,/mcd”C”on page I - IO
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